Raza's fighters carry Heckler & Koch G36K rifles with C style carry handles. In the film, Tony Stark (Robert Downey Jr.) realizes that Raza's fighters have hijacked a weapons shipment from Stark Industries, and is thus better armed than any of the other factions in Afghanistan.
Several of Raza's men are armed with H&K UMP45s with tactical outfitting. They are believed to be UMP45s based on the slow rate of fire compared to the fast rates of the 9mm and .40 caliber models.
Some of the terrorist fighters seem to carry an XM177 lookalike rifle, sometimes referred to as a CAR-15, to differentiate it from the real XM177 series of rifles.
USAF Security forces in Afghanistan are seen armed with M4A1 rifles. Also used by Woodland BDU outfitted Security at the Airbase when Stark returns to the U.S.
Held by one of Raza's men is an M4A1 with a Magpul Buttstock and an M26 Modular Acessory Shotgun System (MASS) fitted under the barrel. While the carbine's grip appear to be removed, close inspection reveals his sleeve is in the way.
USAF Security Forces in Afghanistan use Browning M2 M1921 mounted on top of their Humvees. One of the Taliban fighters is seen using an M2 when Stark escapes in his prototype Iron Man suit, firing it at him before being burned by his flame throwers. Hammered steel would not likely stop a .50 caliber round or near any round fired at him, but perhaps Stark was smart enough to build it stronger. In a deleted scene, Col. James 'Rhodey' Rhodes (Terrence Howard) mans a fifty caliber when the gunner is killed during the ambush.
One of the Ten Rings members attempts to shoot Stark in the head with a Heckler & Koch USP when his arm gets stuck in the wall, but the round deflects off the armor and hits him instead. Abu Bakaar (Sayed Badreya), the leader of the Taliban members is also seen with a USP at his hip in a holster.
The SHIELD agents excorting Pepper Potts (Gwyneth Paltrow) to arrest Obadiah Stane (Jeff Bridges) are armed with Glock 17 pistols, which they fire at Stane, now "Iron Monger", but prove useless and they are easily dispatched.
